Portable electric heater



2 Sheets-Sheet 1 G. D. HAUSER PORTABLE ELECTRIC HEATER Filed June 24,1925 Dec. 4, 1928.

Dec. 4, 1928. 1,694,175

G. D. HAUSER PORTABLE ELECTRIC HEATER Filed June 24, 1925 2 Sheets-Sheet2 INVENTOR y MAM cVM-Mw ATTORNEY Patented Dec. 4, 1928.

UNITED STATES 'PATENT 04F FICE. .f

GEORGE D. HAUSER, OF UTICA, YORK, ASSIGNOR TO UTICA PRODUCTS, INC., OF

UTICQA,` NEW YORKQA CORPORATION OF'NEW YORK,

PORTABLE ELECTRIC HEATER.

Application filed Tnn'e 24, 1925.

My invent-ion relates to heaters and more particularly to portableelectric heaters. One of the objects of the invention is to'provide animproved heater which is efficient for.' heating and which at the sametime remains suflicientlycool at its outeror peripheral wall to bereadily handled, fory example, when it is desired to-move the heaterfrom one place to another.

Other objects, features. and advantages of the invention will appearmore fully in the following detailed description and appended claims.v

The accompanying.. drawings forming a part of this specificationillustrate one einbod-iment of the invention.

In the drawings,

Figure 1 is a central vertical sectional view of the said embodiment ofthe invention.

lligure 2 is a top planview thereof; an d Figure 3 is a view takenonline 3-3 of Fig. 1.

The body of the heater as shown comprises an'outer vertical cylindricalshelll and an inner cylindrical shell 2 which'is secure in spacedrelation to the shell 1 by the flange 3 so as to provide an annular airspace -l between the said shells. The flange 3 may be spot welded orotherwise secured within'the shell 1, this flange as shown fittingwithin a groove or recess at the lower end of the shell 2. A top 5perforated in the central `portion thereof, as shown at 6, rests uponthetop of the shell 1, this top being positioned above the top of the shell2 for a purpose which will presently appear. rThe shell 1 rests upon abase 7, fitting closely around a central 'raised portion 7 of said ase.Said base is supported as shown by legs 8. The shells 1 and 2, flange 3,top 5, base 7 and legs 8 are de-V sirably formed of sheet metal. To holdthese parts in proper relation to each other, screw bolts 9 areprovided, these bolts extending through the cover, flange 3 and the base7 and being provided at their lower ends with threaded portions carryingwing nuts 10 for drawing the various parts tightly together. Thisarrangement affords a simple relatively cheap construction permittingready assembly and taking apart of the various parts of the body of theheater.

The lower part of the shell 1, at a point below the flange 3, isprovided with openings 11 through which the .air to be heated may passlaterally with respect to the heater into Serial No; 33,229.v

the interior thereof and then upwardlyinto the heating space 12 withinthe shell 2. This air after being heated, as hereinafter described,passes upwardly out of the shell 2 and through the perferations in thetop 5 to the atmosphere. f

To permit the circulatiei'i of air through the space 4 a plurality ofopenings 14 are proA vided, as shown, the lower part of the shell 1 at.a point immediately above the flange 3, another set of openings 15being formed in the shell 1 adjacent the top thereof. When the shell 2becomes heated, air enters the openings 14 in a lateral direction withvrespect to the heater, this air passing upwardly from fthe baffle 3through the space 4 and'soine of it passes out through openings 15 in alateral ydirection with respect to the body of the heater. Some of theair from the space 4l passes over and above the shell 2 and out throughthe openings 6, absorbing some of the heat from the hot air from thespace 12 so as to increase the volume of heated air and somewhat vlowerrthe temperature. thereof.

vThe passing of the air upwardly through the air space 4 serves tomaintain theouter peripheral wall 1 of the body of the heater relativelycool; and I have found that with a `heater constructed inthis manner the.saidouter wall may be readily grasped by the hands without danger ofburnin so that the heater may be thereby readily moved from one place toanother. To facilitate handling of `theheater, finger pieces 16 may besecured to the wall'l at opposite points thereof, as shown in' Fig. 1.yThe cover 5 as shown be provided with an extension 17 serving as aguard about the upper part of the shell 1 adjacent the openings 15. Theflange 3 and the bottom portion 7 are preferably made solid oriinperforate so as to avoid the danger of heated particles fallingdownwardly from the spaces 4 and 12 to the floor.

They heating element shown includes an Y terior of the plu()r 22 to theusual peripheral contacts in the pIug 22 and socket 19. Current from asuitable source may be supplied to the contacts in the socket 19 througha cable 27, the outer portion of which as shown is provided with a plug28 adapted to be connected to a source of electricity such as the usualelectrical wiring in dwelling houses.

To effectively direct the air heated by the element 24 upwardly outthrough the top of the heater, I provide a reflector 30 which isldesirably mounted on the socket member 19. The lower end of reflector30 is provided with downwardly extending tabs 31, 32a. The tab or tabs31 are secured as by riveting to a ring 33 surrounding the socket 19,the ring 33 being adapted to be lixedly secured about the socket 19 byscrew 34 passing through the free outwardly directed end portions ofsaid ring. These end portions of the ring extend through a slot 35 inthe tab 32 whereby the necessary expansion and contraction of the saidring is permited. to enable the same to be secured in place or releaseda n d at the same time the projecting end portions of the ring assist inholding the reflector against up and down movement.

The heating element 24 and the reflector 30 are desirable arranged inthe lower part of .the body of the heater. The air entering the openings11 passes upwardly in the shell 2. Near the upper part of the reflector30 it is thoroughly heated and directed upwardly out through the top ofthe heater, the updraft within the shell 2 tending to increase theup-draft in the annular air space 4. The reflector' 30 as shown is inthe form of an inverted truncated cone with its outer edges spaced fromthe wall 2. The said reflector acts as a shield between the innerlateral wall 2 and the heating element. 24: and thereby assist-s inmaintaining the outer lateral w-all 1 cool. If desired, the reflectormay be pro vided with suitable openings, for example, peripheralrecesses 37 as shown in Fig. 1 to permit the current of air to pass inclose proximity to the heating element 24.

It is to be understood that changes within the scope of the appendedclaims may be made in the'structure shown and described withoutdeparting from the spirit and scope of the invention.

Having thus described my invention, what I claim as new and useful anddesire to secure by Letters Patent of the United States is 1. A heatercomprising a body having an outer lateral wall, an inner lateral wallhaving a heating space within the same and a perforated top wall, saidlateral walls being spaced apart to provide an air space between them,and said body being provided with means for admitting separate bodies ofair laterally to the lower parts of said air space and said heatingspace respectively, and to permit the escape of air from the upper partof said air space, said spaces being closed at the bottoms thereof andopen to the atmosphere through said perforated top wall, an upwardlydirected reflector withinsaid body adjacent the lower part thereof, anda heating elementwithin said reflector.

2. A heater comprising a body having spaced inner and outer lateralwalls, a tapered reflector within said body, and a heating clementwithin said reflector'.

3. A heater comprising a body having spaced inner and outer lateralwalls, and a perforated top wall, an upwardly directed conical reflectorwithin said body, and a heating element within said reflector.

4l. A heater comprising a body, a tubular shell within said body andspaced therefrom to form an annular air chamber, said shell terminatingabove the bottom of said body and having a baffle plate extending fromits lower edge to said body, an upwardly-directed tapered reflector atthe lower end of said shell, and a heating element within saidAreflector, said shell and air chamber being in communication with theatmosphere independently of each other.

5. A heater comprising a body having a perforated top wall, a tubularshell within said body and spaced therefrom to form an annular airchamber, said shell terminating above the bottom of said body and havinga baffle extending from its lower edge to said body, anupwardly-directed tapered reflector at the lower end of said shell, anda heating element within said reflector, said body being provided withapertures for permitting circulation of cool air through said annularchamber and also with apertures for admitting air to the interior ofsaidshell.

In testimony whereof, I have signed my name to this specification.

GEORGE D. HAUSER.

